基于长周期光纤光栅的海水盐度监测可行性试验研究
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摘要
在气候变暖、海平面上升和人类活动等因素的作用下,海水入侵问题日益突出。盐度的变化是判定海水入侵严重程度的一个重要依据,因此,海水盐度的原位监测显得尤为重要。目前,海水盐度的传统监测方法缺少原位、实时、长距离的功能,而近年来有关长周期光纤光栅(LPG)技术测量液体折射率的研究为海水入侵过程中的盐度监测提供了一个新的视角。本文以海水入侵过程中盐度监测为研究背景,设计了基于LPG技术测量海水盐度可行性试验,并将测量结果与理论值进行了比较,论证了该技术用于海水盐度测量的可行性。试验结果表明:LPG谐振峰中心波长与盐度之间存在较好的线性关系,且测量值与理论值的线性相关程度较高,通过标定可实现对盐度的测量,LPG技术对海水盐度测量具有可行性。研究成果为研发下一代海水入侵LPG原位实时监测技术奠定了基础。
Under the influence of climate warming,sea plane rising and human activities,the problem of seawater intrusion is becoming more and more serious. The change of salinity is an important basis for judging the severity of seawater intrusion. Therefore,it is very important to monitor the seawater intrusion in situ. At present,the traditional monitoring method of seawater salinity lacks in situ,real-time,long-distance function. In recent years,the study of liquid refractive index based on Long-Period Grating( LPG) technology has provided a new perspective for salinity monitoring during seawater intrusion. Based on the monitoring of salinity change during seawater intrusion,the authors design the feasibility test of LPG technology applicable to salinity measurement of seawater,and compare the measured result with the theoretical value. The experimental results show that there is a good linear relationship between the resonant center wavelength and the salinity of LPG,and the linear correlation between themeasured value and the theoretical value is high. Then the salinity can be measured with calibration. LPG technique is feasible for salinity measurement. The research results lay the foundation for the development of the next generation LPG in situ real-time monitoring technology of seawater intrusion.
Under the influence of climate warming,sea plane rising and human activities,the problem of seawater intrusion is becoming more and more serious. The change of salinity is an important basis for judging the severity of seawater intrusion. Therefore,it is very important to monitor the seawater intrusion in situ. At present,the traditional monitoring method of seawater salinity lacks in situ,real-time,long-distance function. In recent years,the study of liquid refractive index based on Long-Period Grating( LPG) technology has provided a new perspective for salinity monitoring during seawater intrusion. Based on the monitoring of salinity change during seawater intrusion,the authors design the feasibility test of LPG technology applicable to salinity measurement of seawater,and compare the measured result with the theoretical value. The experimental results show that there is a good linear relationship between the resonant center wavelength and the salinity of LPG,and the linear correlation between themeasured value and the theoretical value is high. Then the salinity can be measured with calibration. LPG technique is feasible for salinity measurement. The research results lay the foundation for the development of the next generation LPG in situ real-time monitoring technology of seawater intrusion.
引文
Bi W H,Xing Y H,Zhou K P,et al.2017.Measurement of the refractive index of the mixed oil kerosene based on long period fiber grating[J].Acta Photonica Sinica,46(2):38-44.
Chen K,Li S F,Zhang Z J,et al.2015.3-D processing technology of high density resistivity data and application to urban ground investigation[J].Journal of Engineering Geology,23(1):170-177.
Chen X.2013.Research on the Na Cl solution concentration sensor based on long period fiber grating[D].Tianjin:Tianjin University.
Ding P X.2013.Evolution and cause analysis of typical coastal zones in China during the last 50 years[M].Beijing:Science Press:252-256.
Gao M S,Luo Y M.2016.Change of groundwater resource and prevention and control of seawater intrusion in coastal zone[J].Bulletin of Chinese Academy of Sciences,31(10):1197-1203.
Huang L,Guo Z R.2008.Mechanism of sea water intrusion in China's coastal areas and its prevention countermeasures[J].The Chinese Journal of Geological Hazard and Control,19(2):118-123.
Jiang L Q,Hu Y H,Jiang C.2016.Bend-sensing characteristics of long period fiber gratings[J].Journal of Hubei Normal University(Natural Science),36(4):30-34.
Kazakis N,Pavlou A,Vargemezis G,et al.2016.Seawater intrusion mapping using electrical resistivity tomography and hydrochernical data.An application in the coastal area of eastern Thermaikos Gulf,Greece[J].Science of the Total Environment,543:373-387.
Li J Q.2016.Research on transient electromagnetic geophysical geophysical signal filtering method in mountainous substation[D].Kunming:Kunming University of Science and Technology.
Li X J.2011.Applications and development of city geophysical prospecting in China[J].Progress in Geopuysics,26(6):2221-2231.
Li X,Ye S Y.2016.Progress in seawater intrusion[J].Marine Geology&Quaternary Geology,36(6):211-217.
Li Z Q,Wang L,Huang L J,et al.2004.Study on refractive index and concentration sensor based on long-period fiber grating[J].Journal of Applied Optics,25(4):48-50.
Liang H,Zeng Q K,Qin Z X,et al.2011.Sensitivity of long period fiber grating to refractive index[J].Journal of Applied Optics,32(1):111-114.
Lyons W B,Ewald H,Flanagan C,et al.2001.An optical fibre sensor for in situ measurement of external species in fluids based on artificial neural network pattern recognition[J].Physiological Measurement,22(3):635.
Martínez J,Benavente J,García-Aróstegui J L,et al.2009.Contribution of electrical resistivity tomography to the study of detrital aquifers affected by seawater intrusion-extrusion effects:The river Vélez delta(Vélez-Mlaga,southern Spain)[J].Engineering Geology,108(3):161-168.
Pereira D A,Frazāo O,Santos J L.2004.Fiber Bragg grating sensing system for simultaneous measurement of salinity and temperature[J].Optical Engineering,43(2):299-304.
Shi B.2017.On the ground sensing system and ground sensing engineering[J].Journal of Engineering Geology,25(3):582-591.
Werner A D,Bakker M,Post V E A,et al.2013.Seawater intrusion processes,investigation and management:recent advances and future challenges[J].Advances in Water Resources,51(1):3-26.
Wang L.2003.Study on refractive index measurement system based on the theory of LPG[D].Qinhuangdao:Yanshan University.
Yang J L,Li H,Shi P X,et al.2014.Research status and discussion on the method of seawater intrusion in the key section of CircumBohai-Sea region[J].Geological Survey and Research,37(4):294-299.
Zhang G N,Yuan X M.2016.Characteristics of SMS fiber structure for measuring the refractive index of the liquid[J].Electronic Quality,(6):78-85.
Zhao Y,Liao Y B.2002.Research on remote seawater salinity measurement technology based on optical fiber fiber system---measurement principle[J].Optical Technology,28(5):429-431.
Zhao Z K.2012.Research on in-situ monitoring of the seawater intrusion process using a high-density resistivity probe[D].Qingdao:Ocean University of China.
Zhu H H,Shi B.2015.Current progress and trends of opto-electronic sensor-based monitoring in geo-engineering---a summary of 5th OSMG-2014[J].Journal of Engineering Geology,23(2):352-360.
毕卫红,邢云海,周昆鹏,等.2017.长周期光纤光栅检测混合油的折射率[J].光子学报,46(2):38-44.
陈康,李世峰,张政杰,等.2015.高密度电法勘探数据三维处理技术及城市勘察中的应用[J].工程地质学报,23(1):170-177.
陈曦.2013.基于长周期光纤光栅的Na Cl溶液浓度传感器研究[D].天津:天津大学.
丁平兴.2013.近50 a我国典型海岸带演变过程与原因分析[M].北京:科学出版社:252-256.
高茂生,骆永明.2016.我国重点海岸带地下水资源问题与海水入侵防控[J].中国科学院院刊,31(10):1197-1203.
黄磊,郭占荣.2008.中国沿海地区海水入侵机理及防治措施研究[J].中国地质灾害与防治学报,19(2):118-123.
江柳清,胡义慧,江超.2016.长周期光纤光栅的弯曲传感特性[J].湖北师范学院学报(自然科学版),36(4):30-34.
李佳奇.2016.山地变电站的瞬变电磁地质物探信号滤波方法研究[D].昆明:昆明理工大学.
李学军.2011.我国城市物探的应用与发展[J].地球物理学进展,26(6):2221-2231.
李雪,叶思源.2016.海水入侵调查方法研究进展[J].海洋地质与第四纪地质,36(6):211-217.
李志全,王莉,黄丽娟,等.2004.基于长周期光纤光栅的折射率与浓度传感方案的研究[J].应用光学,25(4):48-50.
梁辉,曾庆科,秦子雄,等.2011.长周期光纤光栅的折射率敏感特性[J].应用光学,32(1):111-114.
施斌.2017.论大地感知系统与大地感知工程[J].工程地质学报,25(3):582-591.
王莉.2003.基于长周期光纤光栅理论的折射率测量系统研究[D].秦皇岛:燕山大学.
杨吉龙,李红,施佩歆,等.2014.环渤海典型地段海(咸)水入侵研究现状及方法探讨[J].地质调查与研究,37(4):294-299.
张桂娜,袁雪梅.2016.SMS光纤结构用于液体折射率测量的特性[J].电子质量,(6):78-85.
赵勇,廖延彪.2002.海水盐度光纤遥测技术研究---测量原理[J].光学技术,28(5):429-431.
赵战坤.2012.利用高密度电阻率探针监测海水入侵研究[D].青岛:中国海洋大学.
朱鸿鹄,施斌.2015.地质和岩土工程光电传感监测研究进展及趋势---第五届OSMG国际论坛综述[J].工程地质学报,23(2):352-360.
Chen K,Li S F,Zhang Z J,et al.2015.3-D processing technology of high density resistivity data and application to urban ground investigation[J].Journal of Engineering Geology,23(1):170-177.
Chen X.2013.Research on the Na Cl solution concentration sensor based on long period fiber grating[D].Tianjin:Tianjin University.
Ding P X.2013.Evolution and cause analysis of typical coastal zones in China during the last 50 years[M].Beijing:Science Press:252-256.
Gao M S,Luo Y M.2016.Change of groundwater resource and prevention and control of seawater intrusion in coastal zone[J].Bulletin of Chinese Academy of Sciences,31(10):1197-1203.
Huang L,Guo Z R.2008.Mechanism of sea water intrusion in China's coastal areas and its prevention countermeasures[J].The Chinese Journal of Geological Hazard and Control,19(2):118-123.
Jiang L Q,Hu Y H,Jiang C.2016.Bend-sensing characteristics of long period fiber gratings[J].Journal of Hubei Normal University(Natural Science),36(4):30-34.
Kazakis N,Pavlou A,Vargemezis G,et al.2016.Seawater intrusion mapping using electrical resistivity tomography and hydrochernical data.An application in the coastal area of eastern Thermaikos Gulf,Greece[J].Science of the Total Environment,543:373-387.
Li J Q.2016.Research on transient electromagnetic geophysical geophysical signal filtering method in mountainous substation[D].Kunming:Kunming University of Science and Technology.
Li X J.2011.Applications and development of city geophysical prospecting in China[J].Progress in Geopuysics,26(6):2221-2231.
Li X,Ye S Y.2016.Progress in seawater intrusion[J].Marine Geology&Quaternary Geology,36(6):211-217.
Li Z Q,Wang L,Huang L J,et al.2004.Study on refractive index and concentration sensor based on long-period fiber grating[J].Journal of Applied Optics,25(4):48-50.
Liang H,Zeng Q K,Qin Z X,et al.2011.Sensitivity of long period fiber grating to refractive index[J].Journal of Applied Optics,32(1):111-114.
Lyons W B,Ewald H,Flanagan C,et al.2001.An optical fibre sensor for in situ measurement of external species in fluids based on artificial neural network pattern recognition[J].Physiological Measurement,22(3):635.
Martínez J,Benavente J,García-Aróstegui J L,et al.2009.Contribution of electrical resistivity tomography to the study of detrital aquifers affected by seawater intrusion-extrusion effects:The river Vélez delta(Vélez-Mlaga,southern Spain)[J].Engineering Geology,108(3):161-168.
Pereira D A,Frazāo O,Santos J L.2004.Fiber Bragg grating sensing system for simultaneous measurement of salinity and temperature[J].Optical Engineering,43(2):299-304.
Shi B.2017.On the ground sensing system and ground sensing engineering[J].Journal of Engineering Geology,25(3):582-591.
Werner A D,Bakker M,Post V E A,et al.2013.Seawater intrusion processes,investigation and management:recent advances and future challenges[J].Advances in Water Resources,51(1):3-26.
Wang L.2003.Study on refractive index measurement system based on the theory of LPG[D].Qinhuangdao:Yanshan University.
Yang J L,Li H,Shi P X,et al.2014.Research status and discussion on the method of seawater intrusion in the key section of CircumBohai-Sea region[J].Geological Survey and Research,37(4):294-299.
Zhang G N,Yuan X M.2016.Characteristics of SMS fiber structure for measuring the refractive index of the liquid[J].Electronic Quality,(6):78-85.
Zhao Y,Liao Y B.2002.Research on remote seawater salinity measurement technology based on optical fiber fiber system---measurement principle[J].Optical Technology,28(5):429-431.
Zhao Z K.2012.Research on in-situ monitoring of the seawater intrusion process using a high-density resistivity probe[D].Qingdao:Ocean University of China.
Zhu H H,Shi B.2015.Current progress and trends of opto-electronic sensor-based monitoring in geo-engineering---a summary of 5th OSMG-2014[J].Journal of Engineering Geology,23(2):352-360.
毕卫红,邢云海,周昆鹏,等.2017.长周期光纤光栅检测混合油的折射率[J].光子学报,46(2):38-44.
陈康,李世峰,张政杰,等.2015.高密度电法勘探数据三维处理技术及城市勘察中的应用[J].工程地质学报,23(1):170-177.
陈曦.2013.基于长周期光纤光栅的Na Cl溶液浓度传感器研究[D].天津:天津大学.
丁平兴.2013.近50 a我国典型海岸带演变过程与原因分析[M].北京:科学出版社:252-256.
高茂生,骆永明.2016.我国重点海岸带地下水资源问题与海水入侵防控[J].中国科学院院刊,31(10):1197-1203.
黄磊,郭占荣.2008.中国沿海地区海水入侵机理及防治措施研究[J].中国地质灾害与防治学报,19(2):118-123.
江柳清,胡义慧,江超.2016.长周期光纤光栅的弯曲传感特性[J].湖北师范学院学报(自然科学版),36(4):30-34.
李佳奇.2016.山地变电站的瞬变电磁地质物探信号滤波方法研究[D].昆明:昆明理工大学.
李学军.2011.我国城市物探的应用与发展[J].地球物理学进展,26(6):2221-2231.
李雪,叶思源.2016.海水入侵调查方法研究进展[J].海洋地质与第四纪地质,36(6):211-217.
李志全,王莉,黄丽娟,等.2004.基于长周期光纤光栅的折射率与浓度传感方案的研究[J].应用光学,25(4):48-50.
梁辉,曾庆科,秦子雄,等.2011.长周期光纤光栅的折射率敏感特性[J].应用光学,32(1):111-114.
施斌.2017.论大地感知系统与大地感知工程[J].工程地质学报,25(3):582-591.
王莉.2003.基于长周期光纤光栅理论的折射率测量系统研究[D].秦皇岛:燕山大学.
杨吉龙,李红,施佩歆,等.2014.环渤海典型地段海(咸)水入侵研究现状及方法探讨[J].地质调查与研究,37(4):294-299.
张桂娜,袁雪梅.2016.SMS光纤结构用于液体折射率测量的特性[J].电子质量,(6):78-85.
赵勇,廖延彪.2002.海水盐度光纤遥测技术研究---测量原理[J].光学技术,28(5):429-431.
赵战坤.2012.利用高密度电阻率探针监测海水入侵研究[D].青岛:中国海洋大学.
朱鸿鹄,施斌.2015.地质和岩土工程光电传感监测研究进展及趋势---第五届OSMG国际论坛综述[J].工程地质学报,23(2):352-360.
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